RE: Cron management...

From: Chris Grabowy <cgrabowy_at_gmail.com>
Date: Sun, 12 Apr 2015 15:08:39 -0400
Message-ID: <00a901d07554$165694e0$4303bea0$_at_gmail>



Hey Gus,  

I did look at the job scheduling features in OEM 12c. But, IMHO, it does not compare to Tidal but it is a possibility. You can specify RMAN commands in an OEM job so that simplifies “backup scripts”, etc.  

We have a couple of scripts scheduled in crontab that do the same thing as OEM. One script will send an email if it can’t connect to the database. Another script monitors the alert log via ADRCI. If we didn’t have those crontab scripts then OEM would be a “single point of failure” in our database monitoring efforts. These scripts come in handy when we do OEM maintenance, etc. So we really can’t put those monitoring scripts in OEM’s job scheduler.  

I hope all is good with you! Are you with the same client?  

Thanks,

Chris    

From: Gus Spier [mailto:gus.spier_at_gmail.com] Sent: Sunday, April 12, 2015 2:50 PM
To: cgrabowy_at_gmail.com
Cc: oracle-l
Subject: Re: Cron management...  

Chris, I haven't looked into it very deeply, but one of the things on my To-Do list is investigate/implement job scheduling through the OEM/Grid Control. Would that work in your application?  

Regards,

Gus  

On Sun, Apr 12, 2015 at 2:47 PM, Chris Grabowy <cgrabowy_at_gmail.com <mailto:cgrabowy_at_gmail.com> > wrote:

Howdy.

We currently have about 30 Redhat Linux servers running Oracle 11.2

Recently for a short time the crontab entry for a production backup was commented out.

Just last week one of the DBAs had "accidently" deleted all the backup scripts. The scripts directory is NFS mounted so it impacted every server.

The Netbackup folks like to do maintenance during the day. Any Oracle backups that may have been running abort. These days we get notice from the Netbackup folks but it's kinda tricky to check 30 servers and determine if anything is running. Or kick off 30+ archive log backup scripts across all the servers to clean up the archive log directories before the Netbackup maintenance.

Managing crontabs, jobs and scripts across 30 servers just doesn't seem to be working.

Our company uses a job scheduling app called Tidal. The manager of that app demo'd the product to me and it seems like it can address many of our headaches. In theory a single simple interface to manage all the jobs scheduled across all the database servers.

However one of the issues identified by the Linux admin is that the Tidal agent needs root access so he is reluctant to install the Tidal agent anywhere but a couple of designated Tidal servers.

I am wondering if other sites have stopped using crontab? If so then what did you replace it with?

Anyway, I am open to any thoughts, suggestions, etc.

Thanks,
Chris Grabowy

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http://www.freelists.org/webpage/oracle-l Received on Sun Apr 12 2015 - 21:08:39 CEST

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